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Amazon • Austin, Texas, United States
Salary: $159,200 - $215,300 / year
Role & seniority
Stack/tools
Embedded: C/C++, Linux, Python, Bash scripting
RF/test: VNA, spectrum analyzers, vector signal generators, RF channel emulators
SDR, software-defined radios; MATLAB/Python-based automation
Networking: TCP/IP, UDP, IPsec, HTTP; familiarity with 4G/5G NR, WiMAX, 802.11 standards
Hardware: RF/IF integration, timing synchronization equipment, test benches, lab automation
Top 3 responsibilities
Architect, integrate, and verify link-layer with PHY and network teams; ensure system-level performance and timing budgets
Develop custom HW/SW and automated test plans for link bring-up, verification, and real-time waveform capture/generation
Design/time-synchronization, Doppler/cfo/sfo compensation techniques for LEO comms; validate link budget, RF configurations, and acquisition/tracking algorithms
Must-have skills
Master’s degree in Electrical/Communications Engineering or 8+ years in wireless system implementation
Embedded wireless development in C/C++ with Linux; strong scripting (Python, Bash)
Experience with RF lab equipment (VNA, spectrum analyzers, power meters); test automation (MATLAB, Python)
Knowledge of RF standards (4G/5G NR, WiMAX, 802.11ad) and multiple access schemes (OFDMA, TDMA, CDMA)
Ability to work in a lab environment and contribute to hardware/software inc
Be part of the team defining and developing the overall communication system architecture and design of Amazon Leo’s wireless network. This is a unique opportunity to innovate and define ground-breaking wireless technology with few legacy constraints.
This position will play a critical role in the integration and verification of various HW and SW sub-systems as a part of system integration and link bring-up and verification. As a part of this effort you will develop custom HW, custom SW and automation solutions for link bring-up and verification to ensure the system and link between the Satellite and ground is operating as per the design requirements. You will also be developing advanced proof of concept HW/SW systems to improve the performance and reliability of the Amazon Leo network. In particular this role will be responsible for using concepts from digital signal processing and wireless communications to develop novel solutions for achieving an ultra-high performance LEO network.
Key job responsibilities
Work closely with implementation teams to evaluate and simulate expected
system level performance and provide quick feedback on potential improvements
Work with the PHY and Network teams to seamlessly integrate the link-layer
within the stack.
Integrate the various link-layers working closely with implementation teams.
Verify link budget and RF line-ups in RF and IF configurations.
Create time synchronized setups with signal generators / spectrum analyzers
and use these to verify timing budgets.
Architect and document time/frequency/space acquisition and tracking
algorithms. Understand Doppler pre and post compensation techniques with CFO/SFO
in LEO comms systems. Experience with channel emulators is a plus.
Work with a team to develop novel customized test plans using embedded
programing to generate and capture waveforms in real-time. Experience with
software defined radios is highly preferred.
Contribute development-test bring up procedures with Linux, Python, bash
scripting etc.
Willing to work in a lab environment and on scripting to change a SW/HW pieces
incrementally and understand its effect on payload (via probing RF, IF, clock,
channel quality messages) with help of Spec-an, sig-gen, scope, frequency
counter, attenuators and other related equipment.
About the team Amazon Leo is an initiative to launch a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband connectivity to
unserved and underserved communities around the world. Basic Qualifications: - Master's degree in Electrical Engineering/Communications Engineering, or 8+ years of wireless communications systems and implementation experience
Experience in embedded wireless systems, or experience in embedded development
in C/C++
Knowledge of network and web related protocols such as TCP/IP, UDP, IPSEC,
HTTP or equivalent
Experience in software development, or experience in agile/scrum or related
collaborative workflow
Experience with RF lab equipment including VNA, power meters, spectrum
analyzers, vector signal generators
Experience in test setup automation using MATLAB, Python, or Pearl
Experience with current and upcoming RF standards in cellular (4G/5G NR),
WiMAX, 802.11ad, microwave backhaul, or related broadband wireless standard
Knowledge of multiple access systems including OFDMA, TDMA, and CDMA Preferred
Qualifications: - Experience designing or architecting (design patterns, reliability and scaling) of new and existing systems, or experience in embedded wireless systems
Experience leading technical initiatives and key deliverables
Ideal candidate has a wireless communication systems or digital signal
processing background, a passion for building real-world carrier-grade
communication systems, and industry experience developing PHY/MAC layer software
targeting embedded multicore processors in C/C++
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit
https: //amazon.jobs/content/en/how-we-hire/accommodations
[https: //amazon.jobs/content/en/how-we-hire/accommodations] for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.
The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave.
Learn more about our benefits at https: //amazon.jobs/en/benefits
[https: //amazon.jobs/en/benefits].
USA, TX, Austin - 159,200.00 - 215,300.00 USD annually